648 
8 Dostnea. Flowers monoecious. Calyx campanulate, 4- 
toothed. Stamens 8, connate into a column around the sterile 
style. Leaves simple. 
I. ACER (acer, in Latin, signifies hard or sharp, which 
comes from ac, a point, in Celtic. The name is applied to this 
genus because the wood is extremely hard, and was formerly 
much sought after for the purpose of making pikes and lances, 
&c.). Moench. meth. 334. and Nutt. gen. amer. 1. p. 253. 
—A`cer, spec. Lin. gen. no. 1115. D.C. prod. 1. p. 593. 
Lin. syst. Polygàmia, Monoécia. Flowers polygamous. 
Calyx 5-lobed, sometimes 5-parted. Stamens rarely 5, but 
usually 7-9. Leaves simple, usually lobed. Flowers of all 
greenish or greenish-yellow. 
§ 1. Flowers racemose. 
* Leaves simple. 
1 A. opténeum (Wall. in litt. D.C. prod. 1. p. 593.) leaves 
oblong-lanceolate, acuminated, quite entire, coriaceous, smooth, 
rounded at the base; racemes compound; wings of fruit pa- 
rallel, smooth, separated. h. H. Native of Nipaul at Narain- 
hetty. Leaves rather glaucous on the under surface. Young 
fruit hairy on the disk, with smooth short wings. A. lauri- 
folium, D. Don, prod. fl. nep. p. 249. A. Buzimpala, Hamilt. 
mss. Flowers pale-yellow. This tree is called in Nipaul 
Moogila and Buzimpala. 
Oblong-leaved Maple. Fl. Feb. Clt. 1824. Tree 20 feet. 
2 A. Lavica’tum (Wall. pl. rar. asiat. 2. p. 3. t. 104.) leaves 
oblong, acuminated, serrulated, shining, smooth; corymbs ter- 
minal; petals cuneated; wings of fruit diverging, cultriform. 
h. H. Native of Nipaul on high mountains, Flowers white. 
Smoothed-leaved Maple. Tree 40 feet. 
3 A. Tara’ricum (Lin. spec. 1495.) leaves cordate, undivided, 
serrated, with obsolete lobes ; racemes compound, crowded, 
erect; wings of fruit parallel, young ones puberulous. h. H. 
Native of Tartary.—Pall. fl. ross. t. 3. Tratt. arch. 1. no. 1. 
with a figure. Wats. dend. brit. 160. Corolla white. 
Tartarian Maple. Fl. May, June. Clt. 1759. Tr. 20 ft. 
* * Leaves 3-lobed or trifid, very rarely 5-lobed. 
4 A. striatum (Lam. dict. 2. p. 381.) leaves cordate, 3- 
lobed, acuminated, finely and acutely serrated ; racemes simple, 
pendulous; petals oval; fruit smooth, with the wings rather 
diverging. h.H. Native of North America from Canada to 
Carolina. Mich. fil. arb. 2. t.17. A. Pennsylvanicum, Lin. 
spec. 1496. Tratt. arch. 1. no. 11. with a figure. A. Cana- 
dénse, Dub. arb. 1. t.12. Mill. t.7. Trunk elegantly striped 
with white lines. Flowers greenish-yellow. There is a variety 
of this tree with undivided leaves, but it is extremely rare. 
Striped-barked Maple. FI. May. Ju. Clt.1755. Tr. 20 ft. 
5 A. spica‘tum (Lam. dict. 2. p. $81.) leaves cordate, 3 or 
slightly 5-lobed, acuminated, pubescent beneath, unequally and 
coarsely serrated; racemes compound, erect; petals linear; 
fruit smooth, with the wings rather diverging. h.H. Native of 
Canada and the Alleghany mountains. A. montanum, Ait. hort. 
kew. 3. p. 435, Tratt. arch. 1. no. 13. with a figure. A. Penn- 
sylvanicum, Duroi. harbk. t. 2. A. parviflorum, Ehrh. Flowers 
very small, greenish-yellow. 
Spiked-flowered Maple. 
25 feet. 
6 A. ny’bRipum (Bose. dict. agr. 5. p. 251.) leaves rather 
cordate, somewhat coriaceous, smooth, profoundly trifid, with 
the lobes unequally and coarsely toothed ; racemes pendulous ; 
fruit smooth with diverging wings, h.H. Native of? Flowers 
greenish-yellow. 
Fl. April, May. Clt.1750. Tree 
ACERINEZ. 
I. Acer. 
Tree 20 feet. 
Hybrid Maple. Fl. May, June. Clt.? 
*** Leaves 5-lobed. 
7 A. PSEU`DO-PLA Tanus (Lin. spec. 1469.) leaves cordate, 
smooth, with 5 acuminated, unequally-toothed lobes ; racemes 
pendulous, rather compound, with the rachis as well as the fila- 
ments of stamens hairy; fruit smooth, with the wings rather 
diverging. h.H. Native of Europe, particularly in Switzer- 
land, Germany, Austria, and Italy in wooded mountainous situa- 
tions. Duh. arb. 1. t. 36. Tratt. arch. 1. no. 2. with a figure. 
Schm. arb. 1, p. 3.4. Flowers yellowish-green. A large tree, 
usually clear of branches to a considerable height. It was for- 
merly much planted for walks and avenues, but has given way to 
better and more sightly trees. However this tree with some 
other species are peculiarly proper for making plantations near 
the sea, or to shelter other trees in that situation, for they resist 
the spray better than most trees. It grows sometimes to 13 oF 
14 feet in girth, Before earthenware came into use at the 
table, the wood of the Sycamore, which is soft and white, was in 
much request for trenchers. It is still used by turners for bowls, 
dishes, &c., by saddlers for saddle-trees, and is recommended as 
excellent for cart and plough-timber, being light and tough. It 
is, however, inferior to the ash for these purposes. It is a quick 
growing tree. In spring and autumn this tree will pour forth, 
from the wounded stem, in the same manner as the birch, abund- 
ance of saccharine juice, from which sugar and good wine may 
be made, as Ray affirms from the information of Dr. Martin 
Lister. The tree in England is vulgarly called Sycamore-tree 
and by some Mock-plane. In Scotland it is known by the ap- 
pellation of Plane-tree. 
Var. B, variegata ; leaves variegated. 
Var. y, subobtisum (D. C. prod. 1. p. 594.) lobes of leaves 
blunter ; fruit and wings larger. <A. opulifolium. Thuil. fl. 
par. 538. A. vitifolium, Opiz. 
Var. £, lacinidtum (Loud. hort. brit. p. 412.) lobes of leaves 
jagged. Schm. arb. 1. 5. 
Mock-plane-tree, Sycamore, or Great Maple. Fl. May; 
June. Clt. 1683. Tree 30 to 60 feet. 
8 A. vittdsum (Wall. pl. rar. asiat. 2. p. 4.) leaves cordate, 
5-lobed, villous beneath as well as the petioles ; lobes ovate, 
acute ; racemes lateral ; buds and young leaves silky-villous ; 
petals bearded at the apex; fruit villous, with straightish cultri- 
form, crenulated wings. h.H. Native of the high Alps near 
to perpetual snow in Sirmore and Kamaoon. Flowers fragrant. 
Villous Maple. Tree 50 feet. 
9 A. caupa‘rum (Wall. pl. rar. asiat. 2. p. 4.) leaves cordate, 
5-lobed, pubescent beneath, and villous in the axils of the veins 
and nerves, but when aged smooth; lobes ovate, acuminated, 
doubly serrated; serratures awned; racemes smooth; wings 
of fruit diverging. h. H. Native of Nipaul towards Gosaings~ 
than. A.pectinatum, Wall. mss. 
Tailed-lobed-leaved Maple. Tree 50 feet. 
10 A. macrorny’Lium (Pursh. fl. amer. sept. 1. p. 267.) lea 
digitately 5-lobed, with roundish recesses; lobes somewhat 3- 
lobed, repandly-toothed, pubescent beneath ; racemes compoune, 
erect ; stamens 9, with hairy filaments ; ovaries very hairy. k. 
H. Native of North America on the great rapids of the Colum- 
bia river, and of northern California. Flowers greenish-yellow . 
Long or Large-leaved Maple. Fl. May, June? Clt. 1812- 
Tree 60 feet. 5.) 
11 A. srerċúLIaceum (Wall, pl. rar. asiat. 2. p. 3. t 10 ? 
leaves cordate, puberulous beneath, 5-lobed ; lobes ovate; acu- 
minated, serrated, outer ones very short, and quite entire ; ra 
cemes lateral; petals smooth. 
Mount Shiapore. Flowers white. Tree 3 feet in diameter. 
Sterculia-like Maple. Tree 50 feet. 
ves 
h. H. Native of Nipaul on | 
